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PDF KA3501 Data sheet ( Hoja de datos )
| Número de pieza | KA3501 | |
| Descripción | PC SMPS Supervisory IC | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de KA3501 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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KA3501
PC SMPS Supervisory IC
www.fairchildsemi.com
Features
• Complete House Keeping Circuit
• Few External Components
• Positive Voltage Protection
• Negative Voltage Protection
• High Current Drive Output for SCR
• Precision Voltage Reference for 5V/12V Outputs
• Power Good Signal Generator with Hysteresis
Description
The KA3501 is complete housekeeping circuits for use in the
secondary side of SMPS(Switched Mode Power Supply).
This IC(Integrated Circuit) contains a precision voltage
reference, protection circuits and a power good signal
generator. It also has a high current drive output for use in
conjunction with an external "crowbar" SCR. The reference
voltage is trimmed to ±2% for correct output voltages(+5V/
+12V) and power good signal generator is to monitor the
voltage level of power good supply for safe operation in a
microprocessor circuit. Using the KA3501 requires few
external components to accomplish a complete
housekeeping circuit for SMPS(Switched Mode Power
Supply). The KA3501 is available in an 14-pin DIP.
14-DIP
Internal Block Diagram
4 VCC1(+5V)
1
VCC 7
8 Vin1
Vin2
5
GATE
6
Feedback
14
2
Vref
Positive
Voltage
Protection
Negative
Voltage
Protection
+2.5V
REFERENCE
VOLTAGE
START UP
INTERNAL
BIAS
VCC2(+12V) 3
1 Vcont 13 GND
+5V
Detecting
COMP
lchg
VCC
Detecting
COMP
9 Td
10 Timing
©2002 Fairchild Semiconductor Corporation
11
PG
12
Ve
Rev. 1.0.2
1 page  
Ordering Information
Product Number
KA3501
Package
14-DIP
Operating Temperature
0°C ~ +70°C
KA3501
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet KA3501.PDF ] | |
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